Anti-theft alarm for vehicles



FIG. 1 is a perspective view of an anti-theft alarm for vehicles showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front elevational view thereof, with the broken lines of a steering wheel showing for illustrative purpose only and forming no part of the claimed design; and,

FIG. 9 is an inverted front elevational view thereof, with the broken lines of a motorcycle lock showing for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for an anti-theft alarm for vehicles, as shown and described. 